[lincpimp]

You have a 32p spur on the jato (mod .8= 32p) and your current motor has an 1/8 shaft.

Looking at your pics you have enough room to put 1/8" spacer between the motor plate and the tranny, that will cure most of your issues.

As far as I know all of the long shank pinion are 5mm bore, so you would need to swap motors, or possibly buy a bore reducer. But I have not seen 32p long shank pinions. I would put some spacers behind the plate, and stick with the pinion you have.